28204027 has 8 divisors (see below), whose sum is σ = 29336000. Its totient is φ = 27091584.

The previous prime is 28204019. The next prime is 28204039. The reversal of 28204027 is 72040282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28204027 - 2³ = 28204019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28203992 and 28204010.

It is not an unprimeable number, because it can be changed into a prime (28204067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902 + ... + 7747.

It is an arithmetic number, because the mean of its divisors is an integer number (3667000).

Almost surely, 2^28204027 is an apocalyptic number.

28204027 is a deficient number, since it is larger than the sum of its proper divisors (1131973).

28204027 is an equidigital number, since it uses as much as digits as its factorization.

28204027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 28204027 is about 5310.7463693910. The cubic root of 28204027 is about 304.3946678891.

The spelling of 28204027 in words is "twenty-eight million, two hundred four thousand, twenty-seven".